Ribbon cartridge



FIG. 1 is a perspective view of a ribbon cartridge showing our design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is an end elevationed view thereof; and

FIG. 5 is an end elevational view taken from the end opposite of that shown in FIG. 4. 

The ornamental design for a ribbon cartridge, as shown. 